Nut-lock.



A. PANALLE.

NUT LOCK.

APPLICATION FILED 13110.10, 1910 11,031,579, Patented July 2, 1912.

@BETE STES FEES NUT-LOCK.

Leensweb.:

To all whom 'it may concern: Be it known that l, ANATOLE PANALLE, a citizen of the United States, residing in the city of-New Orleans, parish of Orleans1 State of Louisiana, have' invented certain new and useful Improvements in Nut-Locks, of which the following is a specification.

My invention pertains to nut locks; and it consists in the peculiar and advantageous nutlock hereinafter described and definitely claimed.

In the drawings, accompanying andforming part of this specification:l F igurel is a side elevation of the bolt comprised in my novel combination. Fig.' 2 is an end elevation of the saine. Fig. 3 is an edge elevation of the nut comprisedfin the improvement..

Fig. 4 is an elevation of the inner side of the nut.' Fig. is a side elevation, and Fig. 6 an edge elevation of the washer that locks the nut. Fig. '7 is a view, on a reduced scale and partly in elevation and partly'.in sec-` tion` showing. the device in use. Fig. 8 is a view showing the relative sizes of the bolt, nut and Washe' Similar letters of reference designate corresponding parts in all of the-views of the drawings. 4

' 'In furtherance of my invention the threaded shank of the bolt is provided with two longitudinal and parallel grooves a and b, the walls of each of which in cross-section describe a right-angle, Fig. 2, and a longitudinal rib g that is produced by the formation of the said grooves and between the same. Also the nut is provided at its inner side with teeth f each of which has an end disposed in the direction of the Vlength of the bolt and a side that is inclined outward to the end of the next forward tooth, with reference to the directionin which the nut is turned to move it up on the bolt shank.

Surrounding the boltshank and interposed between the inner and toothed side of the nut and an element ythrough which the bolt shank extends is the washer of my improvement. The said Washer has an opening to receive the bolt shank and also has its ends separated b v an intervening space so as to permit of the end c being deflected or bent outward to form a dog, designed to coperate with the teeth f of the nut. It is further provi-ded with tongues e and (l arranged on its inner edge and shaped in conformity to the erosssectional Specification of Letters Patent.

Application led December 10, 1910. Serial No.

is arranged Patented? July e, 1912.

shape of the grooves ci and b; the said vening space 7L of a shape and sizeto snugly allel to the sides of the teeth f on the nut,'

and hence it will be manifest thatwhile the Atongues c 'and al being separated by an'intersaid dog will permit of the nut being turned up on the/bolt to the position shown in Fig.

7, the dog will by abutting against the end of the. tooth that is opposed to it, preclude turning or loosening vof the bolt in a retrograde direction.

' VVhenit is desired to turn the nut olf the bolt, the dog e is -bent back into the plane of the major portion of the washer, in which position it will remain because of the washer being made of malleable iron, and hence it will be manifest that after the dog e is bent back as stated, the washer will not interfere with retrogradeI turning andremoval of the nut. The washer made of malleable iron is also advantageous, inasmuch as there is no liability of its dog being casually disengaged from t-he toothed side of the nut by the great vibration to which bolts and nuts are ordinarily subjected when usedin railways., A

By reason of the bolt shank' being provided with the grooves a and b and the rib g, it will be observed that the malleable iron washer, provided with the correspondingly shaped tongues o al and intervening space z.,

'is strongly held against turning on the bolt shank and at the 'same time the bolt shank by entirely occupying all of 'the central opening and the space z. in the. boltI is enabled to eil'ectually reinforce the washer and prevent the same bending and giving in the direction indicated by arrow in F ig. 7, no matter how great the tendency of the nut to turn in said direction. It will also be observed that the washer is prevented from bending and giving in the direction opposite to that indicated by arrow in Fig. 7; t-he bending and giving of the malleable iron washer being resisted in either direction by the bottom walls of the grooves a and l), as well as by the sides of the rib g, with the result that in case of tendency of the washer to turn on the bolt a large surface of the bolt is opposed to a correspondingly large surface ofthe washer. This will 'be appreciated as an important ad vantage when it is borne in mind that the washer, as before stated, is made of malleable iron so that after the dog' e is bent back the Vwasher will not interfere 'With-retro# grade turning" and removal ofthe Iiut.

Ilaim: The herein ydescribed nut lock consisting essentially of a bolt' having athreaded shank provided with spaced and parallel longitulranged between dinal grooves, the walls of each of which and a Washer surrounding the bolt shank,

tongues on shape to and fullyoccupying the grooves of at the inner side of the' nut, and. having its inner edge corresponding in Copies of this patent may *be obtained for the bolt shank and also' having: a space between said tongues corresponding iny shape to and snugly receiving the ribA of the bolt shank and further having its ends separated by anl intervening space and one of the said ends bent outward from the major portion ,of the Washerl to forni a dog for engaging the teeth of the n ut, the' said Washer being of malleable iron to permit of the said dog being bent back into the plane of the remainder of the Washer when it is desired to turn the nut off the .bolt

shank. Y

ANATOLE PANALLE. Witnesses :v

C. O. Hmz, LS. GENSLINGER.

ve cents each, by addressing the Commissioner of Patents, Washington, D. 

